The Department of Defense, specifically the Department of the Army, is issuing a Request for Information (RFI) titled "APEXADSCFT-25" to gather insights for the All-Domain Persistent Experiment (APEX), which focuses on sensor technology in a Denied, Degraded, Intermittent, and Limited (DDIL) environment. The RFI aims to identify potential sources capable of providing Commercial Off-The-Shelf (COTS) or Non-Developmental Items (NDI) related to sensor technologies, data processing, and assured Positioning, Navigation, and Timing (PNT) capabilities across various domains. This initiative is crucial for enhancing multi-sensor dominance and integrated sensing architecture, ultimately supporting the Army's Navigation Warfare (NAVWAR) mission area. Interested parties are encouraged to submit unclassified White Papers by 3:00 PM EST on February 15, 2025, to the primary contacts, Jason Wideman and Lisa Reyes, via the provided email addresses.